Abstract: An optical apparatus includes a lens including a first surface and a plurality of side surfaces, a display device disposed on a first side surface among the plurality of side surfaces of the lens and providing light to the first side surface of the lens, an optical path control device disposed between the first side surface of the lens and the display device and selectively changing an optical path of a virtual image of the display device, and a plurality of reflecting members disposed in the lens and reflecting light of the display device to the first surface.

Abstract: According to one aspect of the present invention, there is provided a method for providing shot information on golf balls, the method comprising the steps of: generating strike information and direction information of a ball with reference to information on a physical quantity of the ball measured or estimated from at least one swing; and visualizing and displaying the generated strike information and direction information of the ball in a first region or a second region.

Abstract: An embodiment motor cooling apparatus includes a stator core including a plurality of metal plates made in a predetermined shape by lamination, an inlet channel formed from one side of the stator core and extending therethrough to a predetermined depth therein, a plurality of cooling channels branched from an internal end of the inlet channel and extending therefrom to either an upper side or a lower side of the stator core, and a cooling fluid supply apparatus configured to circulate cooling fluid from the inlet channel to the plurality of cooling channels.

Abstract: A continuous preparation system of a conjugated diene-based polymer having improved rolling resistance properties is provided. By utilizing the continuous preparation system a polymerization conversion ratio at an initial stage of polymerization is easy to control, long time operation is possible and productivity is excellent.

Abstract: The present disclosure relates to a heating container for cooking food including an outer container, a heating agent container which provides an internal space for receiving a heating agent, an inner container which is received in an internal space of the outer container, and a lid which is separably connected with the outer container to close an open top of the inner container, wherein the outer container includes an outer container bottom having a bottom opening, and an outer container sidewall which extends upward from the outer container bottom, and the heating agent container is separably connected to the outer container such that at least part extrudes outward through the bottom opening.

Abstract: Disclosed is a vapor-tight container comprising a container body having a first extension formed to extend outwards along a rim of a sidewall thereof and a locking protrusion bent downwards from an end of the first extension, and a container lid configured to cover an upper portion of the container body so that the inside of the container body is sealed.

Abstract: Disclosed is a vapor-tight container comprising a container body having a first extension formed to extend outwards along a rim of a sidewall thereof and a locking protrusion bent downwards from an end of the first extension, and a container lid configured to cover an upper portion of the container body so that the inside of the container body is sealed.

Abstract: A method and apparatus for a key phone system stores languages of various countries in a data base, performs a multiplexing operation in a language of a corresponding country as the need arises, and displays all kinds of function and operational information in the corresponding language. When the power is turned on, the method and apparatus displays an initial language; checks whether or not a language changing key has been operated, and if the language changing key has been operated, designates a corresponding language index; and changes the initial language into the designated corresponding language and displays all kinds of functions and operational information in the designated language.